Details of parameters – Panasonic MDDDT5540 User Manual

Page 110

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- App.36 -

Default: [ ]

P r N o .

P a r a m e t e r Range

F u n c t i o n

d e s c r i p t i o n

Defines the duration from the shutdown of motor current (servo

free) to OFF (i.e. brake energized) of the brake release signal (BRK-
OFF) in transition to Servo-OFF during the motor in motion, not
during the halt as handled by Pr6A.

6 B

Mechanical
brake action
s e t - u p
at motor in
m o t i o n

0 ~

100

[ 0 ]

Details of Parameters

• This parameter is necessary for avoiding the

degradation of the brake due to the rotation of the
motor.

• The value of T

B

is the value of Pr6B or

the time needed for decreasing the motor
speed to about 30 r/min , whichever is smaller.

• Pr6B = (Entry) x 2 ms
• See also "Timing chart for Servo-ON/OFF during

the halt of motor" in Appendix 13.

T

B

On

SRV-ON

BRK-OFF

Motor velocity
(r/min)

Brake
released

Off

Brake
engaged

Motor
current

Energized

Not energized

30 r/min

Approx.

Pr6AÇÃê›íËÅÜtb

• The value of this parameter should not be less than

the value of tb (delay of braking) in order to avoid
the minute movement or fall of the motor (work).

• Pr6A = (Entry) x 2 ms
• See also "Timing chart for Servo-ON/OFF during

the halt of motor" in Appendix 12.

On

SRV-ON

BRK-OFF

Actual
braking

Motor
current

Brake

released

Brake

released

Off

Brake

engaged

Brake

engaged

Energized

Not energized

Pr6A

tb

Defines the duration from OFF of the brake release signal (BRK-
OFF) (i.e. brake engaged) to the shutdown of motor current (servo
free) in transition to Servo-OFF during the halt of the motor.

6 A

Mechanical
Brake action
set-up at
motor standstill

0 ~

100

[ 0 ]

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